TY - BOOK TI - Katalog der Paläarktischen dipteren VL - Bd.4 (1905) UR - https://www.biodiversitylibrary.org/item/25068 PB - Wesselényi CY - Budapest PY - 1905 AU - Becker, Th. (Theodor), KW - Arctic regions KW - Diptera ER -